If you have no luck there, you could try the left side of the bridge towards Cows Rock. I have been there a few times recently. Though theres a lot of eels. I've caught a few Bream there, and on my last visit I landed a small 50cm Jew. I've also been told that it's not a a bad spot for the school Jews.
It's only a 5-8 min walk on a medium difficulty track (not ideal for kids)
Parking at Kangaroo point, you walk up and over the road and theres a track that'll take you under the F3 road bridge and along the waters edge. But take care, there a few gaps in the track.
It's not a super hot spot but just another option to try if you're in the mood with no luck.
I'll be heading there tomorrow night to get another session in before my Xmas break ends.
Good luck,
Rob.